LLM-discovered 0 days

Frontier Red Team demonstrates that Claude Opus 4.6 can autonomously find and help remediate high-severity zero-day vulnerabilities in well-tested open-source software (reporting over 500 validated issues), illustrating novel discovery techniques (reading commit history, reasoning about algorithms, targeted analysis) with examples in GhostScript, OpenSC, and CGIF, and describes validation, patching workflows and new probe-based safeguards to manage dual-use risk and adapt disclosure processes.